Comment 2 for bug 197235

same problem on x386 too:

Locking assertion failure. Backtrace:
#0 /usr/lib/libxcb-xlib.so.0 [0xb4549767]
#1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_unlock+0x31) [0xb45498b1]
#2 /usr/lib/libX11.so.6(_XReply+0xfd) [0xb459e29d]
#3 /usr/lib/jvm/java-6-sun-1.6.0.04/jre/lib/i386/xawt/libmawt.so [0xb46a58ce]
#4 /usr/lib/jvm/java-6-sun-1.6.0.04/jre/lib/i386/xawt/libmawt.so [0xb4682067]
#5 /usr/lib/jvm/java-6-sun-1.6.0.04/jre/lib/i386/xawt/libmawt.so [0xb4682318]
#6 /usr/lib/jvm/java-6-sun-1.6.0.04/jre/lib/i386/xawt/libmawt.so(Java_sun_awt_X11GraphicsEnvironment_initDisplay+0x2f) [0xb468261f]
#7 [0xb5ab9e9d]
#8 [0xb5ab2edd]
#9 [0xb5ab2edd]
#10 [0xb5ab0249]
#11 /usr/lib/jvm/java-6-sun-1.6.0.04/jre/lib/i386/client/libjvm.so [0x621c40d]
#12 /usr/lib/jvm/java-6-sun-1.6.0.04/jre/lib/i386/client/libjvm.so [0x6310378]
#13 /usr/lib/jvm/java-6-sun-1.6.0.04/jre/lib/i386/client/libjvm.so [0x621c2a0]
#14 /usr/lib/jvm/java-6-sun-1.6.0.04/jre/lib/i386/client/libjvm.so(JVM_DoPrivileged+0x363) [0x6272153]
#15 /usr/lib/jvm/java-6-sun-1.6.0.04/jre/lib/i386/libjava.so(Java_java_security_AccessController_doPrivileged__Ljava_security_PrivilegedAction_2+0x3d) [0xb7acb96d]
#16 [0xb5ab9e9d]
#17 [0xb5ab2d77]
#18 [0xb5ab0249]
#19 /usr/lib/jvm/java-6-sun-1.6.0.04/jre/lib/i386/client/libjvm.so [0x621c40d]
java: xcb_xlib.c:82: xcb_xlib_unlock: Assertion `c->xlib.lock' failed.
/usr/share/netbeans/6.0.1/bin/../platform7/lib/nbexec: line 440: 7074 Aborted (core dumped) "/usr/lib/jvm/java-6-sun/bin/java" -Djdk.home="/usr/lib/jvm/java-6-sun" -classpath "/usr/share/netbeans/6.0.1/platform7/lib/boot.jar:/usr/share/netbeans/6.0.1/platform7/lib/org-openide-modules.jar:/usr/share/netbeans/6.0.1/platform7/lib/org-openide-util.jar" -Dnetbeans.system_http_proxy="DIRECT" -Dnetbeans.system_http_non_proxy_hosts="" -Dnetbeans.dirs="/usr/share/netbeans/6.0.1/nb6.0:/usr/share/netbeans/6.0.1/ide8:/usr/share/netbeans/6.0.1/java1:/usr/share/netbeans/6.0.1/apisupport1:/usr/share/netbeans/6.0.1/harness:" -Dnetbeans.home="/usr/share/netbeans/6.0.1/platform7" '-Dnetbeans.importclass=org.netbeans.upgrade.AutoUpgrade' '-Dnetbeans.accept_license_class=org.netbeans.license.AcceptLicense' '-Xmx96m' '-client' '-Xss2m' '-Xms32m' '-XX:PermSize=32m' '-XX:MaxPermSize=200m' '-Xverify:none' '-Dapple.laf.useScreenMenuBar=true' org.netbeans.Main --userdir "/home/andrea/.netbeans/6.0" "--branding" "nb"

i'm on hardy. using just the restricted nvidia module